Validation on 75 RA patients

Algorithm Type: 
Case Only
Implementation Details: 

This implementation was completed on a set of 75 rheumatoid arthritis subjects which were identified from a previously validated algorithm (1). On review of records 73 subjects had a clinical diagnosis of fibromyalgia made by their rheumatologist. 2 subjects did not have the diagnosis of fibromyalgia. 


1. Carroll RJ, Thompson WK, Eyler AE, Mandelin AM, Cai T, Zink RM, et al. Portability of an algorithm to identify rheumatoid arthritis in electronic health records. J Am Med Inform Assoc JAMIA. 2012 Jun;19(e1):e162–9.

Cases (0) Actual Class (Expectation)
Predicted Class
True Positive: 
Correct result
False Positive: 
Unexpected result
Case Positive Predictive Value: